Which of the following costs is an example of a period rather than product cost? A. depreciation on production equipment B. Wages of salespersons C. Wages of production machine operators. D. Insurance on production equipment Which of the following would NOT be treated as a product cost for external financial reporting purposes? A. Depreciation on a factory building. B. Salaries of factory workers. C. Indirect labor in the factory. D. Advertising expenses. The salary of the president of a manufacturing company would be classified as which of the following? A. Product cost B. Period cost C. Manufacturing overhead D. Direct labor Conversion costs do NOT include: A. depreciation. B. direct materials. C. indirect labor. D. indirect materials. Variable cost: A. increases on a per unit basis as the number of units produced increases. B. remains constant on a per unit basis as the number of units produced increases. C. remains the same in total as production inc